التفاصيل البيبلوغرافية
العنوان: |
SPE–UPLC–MS/MS for Determination of 36 Monomers of Alkylphenol Ethoxylates in Tea. |
المؤلفون: |
Lin, Qin, Qin, Yujie, Sun, Hezhi, Wang, Xinru, Yang, Mei, Zhang, Xinzhong, Zhou, Li, Luo, Fengjian |
المصدر: |
Molecules; Apr2023, Vol. 28 Issue 7, p3216, 12p |
مصطلحات موضوعية: |
ALKYLPHENOL ethoxylates, MONOMERS, NONIONIC surfactants, SOLID phase extraction, TEA |
مستخلص: |
Alkylphenol ethoxylates (APEOs) represent a non-ionic surfactant widely used as adjuvants in pesticide formulation, which is considered to cause an endocrine-disrupting effect. In the current study, we established a detection method for the APEOs residue in tea based on solid-phase extraction (SPE) for the simultaneous analysis of nonylphenol ethoxylates (NPEOs) and octylphenol ethoxylates (OPEOs) by UPLC–MS/MS. In the spiked concentrations from 0.024 to 125.38 μg/kg for 36 monomers of APEOs (nEO = 3–20), the recoveries of APEOs range from 70.3–110.7% with RSD ≤ 16.9%, except for OPEO20 (61.8%) and NPEO20 (62.9%). The LOQs of OPEOs and NPEOs are 0.024–6.27 and 0.16–5.01 μg/kg, respectively. OPEOs and NPEOs are detected in 50 marketed tea samples with a total concentration of 0.057–12.94 and 0.30–215.89 µg/kg, respectively. The detection rate and the range of the monomers of NPEOs are generally higher than those of OPEOs. The current study provides a theoretical basis for the rational use of APEOs as adjuvants in commercial pesticide production. [ABSTRACT FROM AUTHOR] |
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قاعدة البيانات: |
Complementary Index |